Multimode near-field microwave monitoring of free water content of skin and imaging of tissue

S. E. Lofland, J. D. Mazzatenta, J. Croman, S. D. Tyagi

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

We have used the near-field scanning microwave microscopy (NSMM) technique in the 1-10 GHz range to monitor the free water content of skin. The water content is interpreted from the measured dielectric properties of the epidermis. The finger skin was first hydrated by soaking in water at 37°C for 30 min followed by monitoring of water content as the free water evaporated under ambient conditions. The same technique has also been employed to image a 1 cm × 1 cm sample of chicken skin. It has been shown that variations exist in the resonant frequencies and quality factors of tissue under varying physical parameters. The samples analysed were as-received and thermally dehydrated or damaged chicken tissue samples. We contrast between the dielectric properties with the optical images. We also discuss possible application of our imaging technique in clinical monitoring of the wound healing process.

Original languageEnglish (US)
Article number006
Pages (from-to)1295-1301
Number of pages7
JournalPhysics in Medicine and Biology
Volume52
Issue number5
DOIs
StatePublished - Mar 7 2007

All Science Journal Classification (ASJC) codes

  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging

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